Half to walter h



(No Model.) I, 2 Sheets Sheet 1.

G. A. HINES.

CHEMICAL TELEGRAPH.

No. 250,147.. Patentd Nov. 29,1881.

(No Model.) 2 Sheets-Sheet, 7

G. A. HINES.

CHEMICAL TELEGRAPH.

3 No. 250,147. Patented Nov. 29,1881.

Fig. 5.

fimgsses: I Inpemtor: Z 4 I 4 ;%KW /W 5 j improved method by whichmessages may be rapidly transmitted over a single wire, thus T 0 all,whom it may concern GEORGE A. HINES OF BRATTLEBOROUGH, VERMONT, ASSIGNOROF ONE- HALF TO WALTER H. CHILDS, OF SAME PLACE.

custom- ELEGRAPH.

SPECIFICATION forming part of Letters Paterrt No. 250,147, datedNovember 29, 1881.

Application filed August 23, 1881. (No model.)

Be it known that I, GEORGE A. H INEs, of

Brattleborough, in the county of Windham and State of Vermont, haveinvented anew and useful Improvement in Chemical Telegraphs, whichimprovenientis fully set'fortb in the following specification, referencebeing I had to the accompanying drawings.

This invention relates to a system of chemical telegraphy in which theproper makes and breaksin the circuit at the transmittihginstrument,which makes the signals to herei corded at'the receiving-instrument,aremade through the medium of astrip or fillet'ot' nonconducting materialhaving its edges notched iareserrated saidnotches or serratures"corresponding to such telegraphic signals or char- I deters as may bedesirable. They may be ar .ranged according to theMorse system or inZaccordamce with such codes as may be de- :vised; furthermore, inconnection with the above, the necessary apparatus for utilizing to thedesired end the peculiarities of the serrated strip or. fillet. v 5

The object of my invention is'to provide an reducing the cost ofconstruction and maintenance, and also obviating what has come to beregarded as objectionable in various waysthe multiplicity of wiresnecessary for a large business under the old system.

My invention consists, first, of a strip or fillet of non-conductingmaterial having its edges notched .or serrated, such notches orserratures corresponding to such telegraphic characters or signals asmay be desired or devised; secfond, of a guide-box, in combination withthe serrated strip or fillet, for retaining the same in its properposition and direction for the accomplishment of the purpose for whichit is designcdythird, of vibrating circuit-closers having springs forgiving them the requisite tension, and also having adjusting devices, incombination with the serrated fillet and guide: box fourth, of what maybe denominated line-keys, so arranged in combination with theforegoingelements as to transmit to amainline wireg snch signals or impulses asmay be imp'artedhto them from a suitable battery through the medium ofthesaid'elements; fifth,

ing-instrument. the diflerent elements of which will be hereinafter morefully set forth.

.The invention will be more fully understood by reference to theaccompanying drawings,

forming a partot' this specification, in which- Figure 1 is a plan ofthe transmitting apparatus; Fig. 2, a side elevation of the same, andFig. 3 an end elevation Fig. 4., a sectional plan, showing a'secontldevice t'or what I denominate a line-key. Fig. 5 is a plan of therecording-instrument; Fig. 6, a side elevation of thesame, and Fig. ,7an end 7 elevation. Figs. 8 and,9 show modifications of the serratedfillet.

The same letters in all the different figures refer to the same parts.

A is the base of the transmitting-instrument.

B is the guide-box. This box is slotted longitudinally and of justsufiicient width and depth to receive the serrated fillet O G O, whichis drawn through the slot in the guidebox B by means of the feed-rolls aand a. The ends of the slot in the box B are rounded outward, as at 71,Figs. 3 and 4, so as to present no obstacle to the free movement of thefillet (J G U. v

D and D are the circuit-closers, one on each 85 side of B. These arecomposed offour partsviz., main bars D and D,-hubs I I, (seen to thebest advantage in Fig. 4,) pawls d and d, and tension-sprin s F and F.The pawls 1 and d enter slots I) b in guide-box B, to enable them tocome in contact with the edges of the serrated fillet O G G. D and D aresupported by and vibrate on the studs E E, and are held down inplace bythe thumb-nuts e and e. The tension-springs F and F are adjusted bythethumb -sorews f and f.' These have small drums or cylinders f f on theirbodies ec centric with their axes,forming cams, thus providing to F F,as constructed, the means for their requisite tension. roo

G and G are the line-keys, so called, sup ported by studs 9 and g, andadjusted to the necessary position for impact with the circuitclosers DD by means of the thumb-screws construction asff" and f f'",

g and 9', having cams g and 9 the same in To the studs {9 g is connectedthe main-line wire, and to the studs E E are connected the battery wiresor wire, as the case may be.

H, Fig. 4, is a line-key of diderentconstruc -tion from those describedabove. It consists of a metallic piece embedded in the slot of theguide-box B, the serrated fillet O O Cpas'sin'g over it. It is forked atthe slots bb, in order that it at the proper times may be in contactwith the pawls of the circuit-closers D D. It projects beyondthe end ofthe box B, and is provided with a stud, h, for connection with main-linewire. r

In Fig. 5, J is the base of the recording-instrument; L, a guide-box,slotted for the admission and free longitudinal movement of achemically-prepared fillet of paper, 0 O 0. Motion is given'to this bymeans of the' feedr'olls M m, 1 I

N'is a vertical frame on base J for supporting stud n, in which isconfined the pen or style P, to which is attached the receiving end ofthe main-line wire. .1 The box L has an' aperhire at the top, so thatthe point of the pen or style P can come in contact with the chemicalpaper 0 U 0, and immediately underthepoint of P is a metallic bed-pieceor ground-plate, R, slightly convex toward the paper which runs over it,and having a projection, R, outside of box "L, with stud r for attachinga ground-wire.

In Fig. 1, I have, for the sake of avoiding confusion oflines, shown theline-wires 1 and 2 as proceeding outward from the studs 9 g; but inpractice they should be connected together and with the mainline as nearto g g as is practicable or convenient.

The feed-rolls a a and M m may have th proper motion imparted to them bymeans of any suitable mechanical device, and their motions should beapproximately isochronous.

O O and 0, Figs. 8 and 9, are some modi' fications of the serratedfillet. The scrratures may be upon one side or the other of the fillet,with a current of one polarity, or upon both sides with a current of onepolarity, or upon both sides with currents of intermittent polarity, orupon both sides with currents of alternate polarity.

From the foregoing I think the operation of the invention will be fullyunderstood. The serrated fillet. having been properlyprepared inaccordance with the principles herein set forth, is drawn through thegnide-box by means of the feed-rolls. The pawls of the circhit-closersfall into the serratures as they come opposite tothem, thus makingcontact with the linekeys, as at t, Fig. 1, and at t, Fig. 4, thusimparting the current to the mainline wire, and through it to the pen orstyle of the recording-instrument through the chemical paper to theground-plate,,and thence 'to the ground, each consecutive current or impulse making a legible mark on. the paper 0 00, which may afterward betranslated in accordance with the prearranged code.

The serrated fillet might be of either conducting or'non-conductingmaterial. If of conducting material, the pawls of the circuitclosersshould be non-conductors, and the form of line-keys G G only would bepracticable;

but as a measure of economy and utility paper of amedium thickness wouldbe'thebest material, and the serratures could be easily and rapidly madein the edges of the fillet by means of a punch or press devised for thepurpose. It will also readily be seen that contact could be made whenthe pawls are receding from the serratures; but the method al- {Sadydescribed I consider the most practicae. I of course lay no claim tomaking legible marks on prepared paper by passing a current ofelectricity through it; but v What I do claim, and what I desire to se-.cure by Letters Patent, is--- 1. A strip or fillet ot' non-conductingmaterial having its edges notched or serrated, said notch'es orserratures corresponding to such telegraphic characters or signals asmay be desired or devised, for the purpose as hereinhefore set forth.

-2. Incombination with the serrated fillet, a guide-box slotted for theadmission and ted vertically for-the admission of circuitolos ers to theedge or edges of the serrated till-ct, substantially as shown.

3. The vibrating circuit-closers 1D and D, as"described,.in combinationwith the serrated fillet and guide-box, snbstantiallyas shown.

4. The line-keys G- and G, as described, in combination with thecircuit-closers D and D, the serratediillei, and guide-box,substantially as shown.

5. In combination with the serrated fillet, guide-box, circuit-closers,line-keys, and feed rolls, a main-line wire connecting thesetransmitting elements, at either end of the line with guidance ofthefillet, and havingits sides slot the receiving elements at the other,substantially as shown.

6. A recording-instgrument consisting of a fillet or strip ctchemically-prepared paper, a guide-box for the same, a pen or stylecon-- nected with the mainline wire, a ground plate and wire, andfeed-rolls, in combination with the serrated fillet, guide-box for thesame,

feed-rolls, substantially as before shown and described.

In testimony that I'claim the foregoing I have hereunto set my hand inthe presence of- HERBERT E. Tamera"; WILLIAM S. Naw'ronacircuit-closers, line-keys, main-line wire, and

